48.23% is the change from 311 to 461
Calculation steps:
[( 461 - 311 ) ÷ 311] x 100 = 48.23%
Formula
Percentage change = [(461 - 311) / 311] x 100
Subtract the new number by the original number
461 - 311 = 150
150 ÷ 311 = 0.48231511254019294
0.48231511254019294 x 100 = 48.23%